1978Final results
1978 election for Michigan Senate District 9
Michigan State Senate · Michigan
Thomas Guastello (D) won with 52.9% of the vote, defeating William R. Eldridge (R) by 5.7 points.
Thomas GuastelloDemocrat · winner · incumbent
52.9%49,445
William R. EldridgeRepublican
47.1%44,099
93,544 votes
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET
The seat over time
D − R margin in this seat's races around 1978
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET